Born in London in 1943 into an Irish working-class family, John Healy became a criminal and alcoholic before discovering chess, yoga and a gift for autobiographical writing in the Charles Bukowski manner. This documentary on his life, and how the 1988 memoir The Grass Arenamade him famous, is fascinating. His subsequent fall from grace, partly, it's said, as a result of threatening to kill senior figures at his publishers, Faber & Faber, remains puzzling and part of the Healy enigma.